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96 lines
5.1 KiB
Plaintext
96 lines
5.1 KiB
Plaintext
.. _faq-admin:
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FAQ: The admin
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==============
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I can't log in. When I enter a valid username and password, it just brings up the login page again, with no error messages.
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---------------------------------------------------------------------------------------------------------------------------
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The login cookie isn't being set correctly, because the domain of the cookie
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sent out by Django doesn't match the domain in your browser. Try these two
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things:
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* Set the ``SESSION_COOKIE_DOMAIN`` setting in your admin config file
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to match your domain. For example, if you're going to
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"http://www.example.com/admin/" in your browser, in
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"myproject.settings" you should set ``SESSION_COOKIE_DOMAIN = 'www.example.com'``.
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* Some browsers (Firefox?) don't like to accept cookies from domains that
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don't have dots in them. If you're running the admin site on "localhost"
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or another domain that doesn't have a dot in it, try going to
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"localhost.localdomain" or "127.0.0.1". And set
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``SESSION_COOKIE_DOMAIN`` accordingly.
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I can't log in. When I enter a valid username and password, it brings up the login page again, with a "Please enter a correct username and password" error.
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-----------------------------------------------------------------------------------------------------------------------------------------------------------
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If you're sure your username and password are correct, make sure your user
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account has ``is_active`` and ``is_staff`` set to True. The admin site only
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allows access to users with those two fields both set to True.
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How can I prevent the cache middleware from caching the admin site?
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-------------------------------------------------------------------
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Set the :setting:`CACHE_MIDDLEWARE_ANONYMOUS_ONLY` setting to ``True``. See the
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:ref:`cache documentation <topics-cache>` for more information.
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How do I automatically set a field's value to the user who last edited the object in the admin?
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-----------------------------------------------------------------------------------------------
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The :class:`ModelAdmin` class provides customization hooks that allow you to transform
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an object as it saved, using details from the request. By extracting the current user
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from the request, and customizing the :meth:`ModelAdmin.save_model` hook, you can update
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an object to reflect the user that edited it. See :ref:`the documentation on ModelAdmin
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methods <model-admin-methods>` for an example.
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How do I limit admin access so that objects can only be edited by the users who created them?
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---------------------------------------------------------------------------------------------
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The :class:`ModelAdmin` class also provides customization hooks that allow you to control the
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visibility and editability of objects in the admin. Using the same trick of extracting the
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user from the request, the :meth:`ModelAdmin.queryset` and :meth:`ModelAdmin.has_change_permission`
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can be used to control the visibility and editability of objects in the admin.
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My admin-site CSS and images showed up fine using the development server, but they're not displaying when using mod_python.
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---------------------------------------------------------------------------------------------------------------------------
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See :ref:`serving the admin files <howto-deployment-modpython-serving-the-admin-files`
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in the "How to use Django with mod_python" documentation.
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My "list_filter" contains a ManyToManyField, but the filter doesn't display.
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----------------------------------------------------------------------------
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Django won't bother displaying the filter for a ``ManyToManyField`` if there
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are fewer than two related objects.
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For example, if your ``list_filter`` includes ``sites``, and there's only one
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site in your database, it won't display a "Site" filter. In that case,
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filtering by site would be meaningless.
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How can I customize the functionality of the admin interface?
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-------------------------------------------------------------
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You've got several options. If you want to piggyback on top of an add/change
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form that Django automatically generates, you can attach arbitrary JavaScript
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modules to the page via the model's ``class Admin`` ``js`` parameter. That
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parameter is a list of URLs, as strings, pointing to JavaScript modules that
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will be included within the admin form via a ``<script>`` tag.
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If you want more flexibility than simply tweaking the auto-generated forms,
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feel free to write custom views for the admin. The admin is powered by Django
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itself, and you can write custom views that hook into the authentication
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system, check permissions and do whatever else they need to do.
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If you want to customize the look-and-feel of the admin interface, read the
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next question.
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The dynamically-generated admin site is ugly! How can I change it?
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------------------------------------------------------------------
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We like it, but if you don't agree, you can modify the admin site's
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presentation by editing the CSS stylesheet and/or associated image files. The
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site is built using semantic HTML and plenty of CSS hooks, so any changes you'd
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like to make should be possible by editing the stylesheet. We've got a
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:ref:`guide to the CSS used in the admin <obsolete-admin-css>` to get you started.
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